Container closure



NOV. 4, 1941. H I 2,261,621

CONTAINER CLOSURE Filed July 14, 1938 2 Sheets-Sheet 1 1 .76% Z l 19 I!I ll j 1 l J "'1 WITNESSES: I N VEN TOR:

Qfi-MMZJ; John hiMifizrrison,

W M 7 ATTORNEYS.

Nov. 4, 1941. J K, M, HARRISON 2,261,621

CONTAINER CLOSURE Filed July 14, 1938 2 Sheets-Sheet 2 INVENTOR:

ATTORNEYS.

John K- M Harrison/ 1 Extended m"ss comma oaosrnas I John K. M.Harrison, Qgontz, Pa., assignor to Sooony-Vacuum Oil Company,Incorporated, New York, N. Y., a corporation of New York ApplicationJuly 14, 1938, Serial No. 219,183

1 Claim.

In forms of the invention as hereinafter dis closed, another object isto substantially reenforce the end closure by an inner lamina ofparchment or other suitable fiuid-proofed sheet material which ispermanently adhered thereto.

A further object is to furnish a novel type of end piece or closure forsuitably-lined containers which, incident to its insertion, in partperipherally opens .up or flares so that the' container lining is causedto annularly enter between and securely unite with the inner plies orfibers of said closure, whereby an effective andrigid buttress joint ispositively ensured.

A still further object is the provision of an end closure, of thecharacter above indicated, having a removable or partly removablesection whereby easy access is afforded to the contents for discharge,or in some forms which enables differ- I ential out-pourings.

, Additional objects and ancillary advantages of this invention will bemanifest from the following disclosure of typical embodiments consideredin conjunction with the accompanying drawings; while it is to beunderstood that the concluding range of equivalents consistent with thestate of the prior art.

In the drawings:

Fig. I is a broken central section through a container embodying oneform of the novel end closure of this invention.

Fig. II is a plan view of the end closure of Fig.

I apart from the container body shell.

Fig. III is a broken diametric section on the line IIIIII of Fig. II,but drawn to exaggerated scale for purposes of cleamess.

Fig. IV is a fragmentary sectional illustration showing a joint-formingstage incident to insertion of the end closure into abody shell.

Fig. V is an exaggerated section somewhat similar to the preceding view,but showing the relative position of the constitutent parts incidentalto completion of the end inserting operation and with the body shell endspun over into abutment with the end closure outer peripheral surfaca-Fig. VI is a plan view of an end closure, in aca claims of thisspecification are to be accorded a closure provided with an'eccentrically located section for pouring purposes.

Fig. IX is a broken diametric section on the plane IXIX of Fig. VIII,but drawn to increased dimensions.

Fig. X is a view similar to Fig. VIII, but showing the semi-removablesection adapted to permit differential out-pourings; and,

Fig. XI is a section like Fig. IX, with the semiremovable section-inelevated dot-and-dash line position.

In all the views, corresponding parts are characterized by similarreference symbols, with an.

appropriate exponent to distinguish the different embodiments.

Referring more in detail firstly to Figs. I-V, in-

clusive, the numeral l comprehensively designates a paper, fiber orother material, containen the body shell 2 whereof is conveniently ofthe spirally-wound type'coated on its inner surface "with a suitableliquid-resistant medium 3, such as a resinous thermoplastic for example.Into the respective ends of the body shell 2 there is fitted, and firmlysecured,- one of the novel end closures 4 of this invention. I

Each such end closure 4 comprises a main or body portion of card orfiber board, or it may consist of suitably afiixed sheets of paper,,fiber or other suitable material 5, and a facing lamina 6 ofappropriate parchment or parchmentized paper, said lamina being securedto the con-' fronting sheet face of the body portion bythe adhesive filmI, of oil and moisture-proof glue,

which forms an impervious juncture. It is to be particularly noted thatthe glue film l, in practice, may be initially formed by a "dab of glueor the like which, when compressed to aflix the parchment lamina 6,spreads out to cover an area well within the circumferential confines ofthe closure 4, so that the surrounding edge portion 8 of said lamina 6is left unattached and free, for a purpose later on explained. Stillfurther, it is to be expressly understood that, in practice, whenadherently compressed paper sheets are used for the main or body portionapproximately three or four plies are found suilicient, also that in thedrawings the reverse sectioning shown is intended to indicate bothpaper-plies and, alternatively, the fibrous constituents of cardboard orthe like.

In producing the end closures 4 from sheet material as aforesaid, itwill be apparent that cordance with this invention, provided with acentral removable section for outlet purposes.

Fig. VII is a broken 'diametrlc section on the plane VII-VII of Fig. VI,on an increased scale.

Fig. VIII is a plan view, showing an end the parchment lamina, asreadily understood on an inspection of Figs. III-V, more particularly.It is also to be observed thatincidental to severnice or pimching of theend closure from the pee-formed parchment-faced body material 8, theparchment lamina will'have its annular surrounding free portion 2slightly dished to-,

I wards said body material I for a purpose later on set forth: while itis to be expressly understood the degree of flare around the closureedge has'been exaggerated in the drawings, for

:clearer illustration of one of the inventive fea- In applying each endclosure 4, and assuming the diameter thereof closely approximates thataid of a heated die or the like, it will be obvious the medium 2 issoftened somewhat and will penetrate between the parchment surroundingfree portion 1 as well as between the corresponding free edges of thepaper plies or fibers i, as indicated by the stippled parts H to movesaid free edges inwards, best shown in V.

As a result there is produced what may be conveniently termed an annularbuttress juncture intermediate the closure-surrounding edge and thedisplaced medium 3, whereby an eifective sealed joint is set-up betweenthe end closure 4andtheinnerwallofthebodyshell2. Furthermore, such ajuncture is strengthened incidental to contractive cooling of the mediumor and the third or longer side line through the-center of the closure4b, and the apex rounding I! a sufiicient distance within thecircumferential confines of said closure. This latter feature ensuresagainst weakening of the disc circumference in the region of the apexrounding II, as well as enabling spinning .over of th container shellfree end without interference with the pouring the arcual dot-and-dashline 22 in Fig. suitably severing the plug ll at the points It, andusing the points 20- as hinges, it will be apparent the plug I 2 may beangularly raised, the underlying parchment suitably severed within theconfines of the aperture l6, and the contents of the container pouredout; or a combined cut- VIII. By

Referring now to Figs. X. and XI, which illustrate the adaptation of thepresent invention as a closure 4c for milk containers, said closure isformed with an incised triangular opening 23 preferably of right-angledcontour. This fiap'flpreferably has one side, including theright-,angle, scored at 25 for hinging movement, a second side 28proximate, or disposed chordiashion relative to, the closurecircumference,

21 in parallel relation to a diametric line passing through thecenthermoplastic 3, such cooling serving to further draw the junctureill and parts il inwards, as shown in Fig. V, in an obvious manner. Inpractice, after each end closure 4 has been inserted, the body shellfree end I2 is suitably spun over and inwardly so as; to strengthen thecontainer, as a whole, by annular abutment with the end closure outerface at I12.

Referring to Figs. VI and W1, theendclosure 4a differs only from theform previously described by the provision therein of a plug portion'l4, removable .from a central orifice IS. The removable or plug portionI4 is conveniently formed by an appropriate operation, such as a secondpunching effected from the outer face of the body portion So by asuitable tool or die that does-not pierce the parchment lamina in. whenthe portion 14 is removed, it will be apparent that an appropriateimplement, for example a combined cutter-and-pouring spout, not shown,adapted to remove or partially remove the parchment lamina within'theconfines of the orifice Ii, can be applied.

In the further embodiment of the end closure 4b illustrated in Figs. VIland Ix, the same is provided with a triangular aperture l6 having theangular corners rounded at H, said aperture not penetrating theparchment ib as described in connection with Figs. VI and VII. Thisaperture I. is normally closed by a snugly fitting plug II which ispreferably not severed at the spaced points is and 24 from the endclosure laminated or fibrous portion 5b. It'is to be observed theaperture Ii and plug" II are.

shown as of isosceles contour with'the base 2| approximately inregistration with a diametric ter of the closure -4c; and said fiap 24is provided with a conventional pull-up tab 28. When the flap 24 isdrawn outwardly by aid of the tab 28,'as indicated-in Fig. XI, it tearsaway from the underlying parchment 6c, leaving said parchment intact Nowit will be readily understood that by severing the parchment along theside 26, the cream collected at the top of the container, by a gentleinclination of the latter, can be poured-out weir-fashion over theopening edge aligning with the flap side 26, in an obvious manner;whereas if the parchment 6c is out along the side 21 and the containertilted for discharge over the opening longer edge that registers withsaid flap side, themilk and'cream can be poured -out in parallelrelation to the diameter of the closure 4c.

From the foregoing description, it is deemed the merits and advantagesof this inventlon will be fully appreciated; also, that the specificdetails of construction illustrated and set forth are susceptible ofmodification in various ways, without departing from the spirit of saidinvention. It is, therefore, desired to include .herein all reasonablevariations that may fall within the scope and liberal interpretationaccorded the following claim. I

Having thus described my invention, I claim:

A container comprising a paper or the like plastic lined body component;an end closure therefor including a fibrous main portion consisting ofmultiple paper sheets suitably adhered together with the surroundingedges an- .nularly unattached, and an impervious sheet material laminasecured by moisture-proof adhesive to the inner face orthe body portionwith the an- ,nular edge portion unattached; said' end closure beingfrusto-conical in shape-with the smaller endpositioned inwardly, and theside thereof forming with the wall of the container and plastic lining,in cross section, a plastic wedge, with the plastic extending inwardlybetween the unaperture l6, as indicated by ter-and-pouring spout afiixedas above referred

